The Study Of Automobile Interior Trim Material Sound-absorbing And Sound Insulation Performance

Modern transport vehicle is the most common and most important, as people on life requirements grow, the demand for automobiles from the initial transport up to comfortable mobile space. As the car noise in driving the car in a significant impact, directly related to the health of people in the car. Therefore, vehicle noise as a measure of automotive mechanical properties and comfort of their own quality standard.This article by designing experimental scheme, in accordance with the experimental procedure, use the standing wave tube test, the first of three species in the genus fiber filters out noise better a species in the genus fiber—jute, and aluminum fiber blend, test different kinds of aluminum fibers absorbing, the outcome of the imported aluminium fiber sound better. Test different weight of jute blanket specimens, determining the sample weight at 6g, which is the best weight is 764.3g/cm~2. And then to different parts of the body, different content ratio of the experimental test results flax and aluminum fiber is the best ratio of 80.08%, aluminium jute fiber 18.92%, and aluminum fiber in the specimen when sound situation better.The single-factor analysis, analysis of the different processing parameters on the effect of sample finishing. For more analysis, observation of various factors on the effect of, each single factors in the case of the best data: depth 8mm; needle acupuncture density of 150/cm~2.Through the orthogonal, on blanket of specimens for research and analysis, come the best finishing parameters: that is, the depth is 12mm and a density of 150 needle acupuncture/cm~2, sample thickness is 5mm, the sample sound better.By scanning electron microscope on flax and aluminum fiber to observe, from different fiber surface structure to analyse its acoustical performance differences.The system examines the different types of flax and aluminum products blend made of Interior carpet acoustical noise effects and finishing, and after effects, on improving automotive interiors of environmental features of certain significance.